Based on the available sources provided, I cannot find specific information about tranexamic acid (TXA) and its effectiveness in stopping gastrointestinal bleeding.
The sources focus primarily on:
- Platelet function and bleeding mechanisms - including how NSAIDs affect platelet aggregation and bleeding time [1]
- Thromboxane A2 pathways - describing how this compound affects platelet aggregation and vascular function [2,4,5]
- Alcohol's effects on platelet function - noting that ethanol impairs platelet function and may worsen gastrointestinal bleeding in alcoholics [3]
What the sources do indicate about GI bleeding:
- NSAIDs create a systemic bleeding tendency by impairing platelet aggregation, with clinical bleeding risks enhanced by alcohol use, advanced age, liver disease, and other coagulopathies [1]
- Alcohol consumption significantly inhibits platelet function, which "will adversely influence the incidence of initial bleeds and of rebleeding in gastrointestinal hemorrhage associated with alcoholism" [3]
Missing information:
The provided sources do not contain any information about:
- Tranexamic acid's mechanism of action
- TXA's effectiveness in treating gastrointestinal bleeding
- Clinical studies or evidence regarding TXA use in GI hemorrhage
- Dosing, contraindications, or safety profile of TXA
To properly answer your question about whether TXA can stop GI bleeding, sources specifically addressing tranexamic acid and its antifibrinolytic properties in gastrointestinal hemorrhage would be needed.